SC110NJ

Overview

The SC110NJ is an industrial-grade piezoelectric alarm from the SC series by Mallory Sonalert. It operates on a voltage range of 30 to 120 VAC or DC with a rated current of 20 mA. The device emits a continuous tone at a frequency of 2.9 kHz and achieves a sound pressure level of 75 dBA. It features screw terminals for connection and is designed for flush panel mounting. The unit has a diameter of 43 mm and a height of 1.41 inches, operating within a temperature range of -30°C to 65°C.

Feature Summary

• Integrated internal drive circuitry for direct AC/DC operation without external drivers
• Piezoelectric transducer technology providing reliable acoustic signaling
• Screw terminal connections ensuring secure electrical interface
• Flush mount design suitable for standard industrial panel cutouts

Applications

• Industrial machinery status indication
• Factory safety alarm systems
• Process control panel alerts
• Equipment fault signaling in manufacturing environments

Procurement Notes

Verify the specific tone configuration required for the application, as the SC series includes various pulse and continuous variants. Confirm that the 30-120V rating matches the system power supply. Ensure the panel thickness accommodates the flush mount requirements and that the 43mm diameter fits the designated enclosure opening. Check for any regional certification requirements such as UL or CE compliance before finalizing the order.

Selection Notes

Select this model when a constant audible warning is needed for high-voltage industrial panels. Compare against other SC series variants if a pulsed tone is preferred for attention-grabbing purposes. Consider the SCH series if hazardous location certification is required. Evaluate the SC110DPR or SC110HPR if different frequencies are necessary for distinct alarm coding within the same facility.

Part Context

This component belongs to the SC series of industrial alarms manufactured by Mallory Sonalert Products Inc. The series is known for robust construction and compatibility with standard industrial control panels. These devices serve as primary audio indicators for critical system events in demanding environments.

Replacement Considerations

Direct replacements include other SC110 variants with matching voltage and mounting dimensions. Verify that substitute models maintain the same 2.9 kHz frequency and 75 dBA output level to ensure consistent alarm audibility.